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- W4297511082 abstract "We derive analytic expansions for the finite-volume energies of weakly-interacting two-particle systems, using the general relations between scattering amplitudes and energies derived by Luscher and others. The relations hold for ground and excited states with both zero and non-zero total momentum in the finite-volume frame. A number of instructive aspects arise in the derivation, including the role of accidental degeneracies and the importance of defining a power-counting scheme in the expansions. The results give intuition concerning the imprint of weakly-interacting systems on the energy spectrum, while also providing a useful basis for the analogous results concerning three-particle excited states, to appear." @default.
- W4297511082 created "2022-09-29" @default.
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- W4297511082 date "2021-10-13" @default.
- W4297511082 modified "2023-10-16" @default.
- W4297511082 title "Analytic expansions of multi-hadron finite-volume energies: I. Two-particle states" @default.
- W4297511082 doi "https://doi.org/10.48550/arxiv.2110.06878" @default.
- W4297511082 hasPublicationYear "2021" @default.
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